Has anybody here programmed Mann's method for predicting structure I and II hydrates.
My scenario is given pressure and composition solve for hydrate temperature.
I seem to be getting wrong answers for structure II hydrates with H2S. All other cases are OK

Thanks for the links. Some of the posted material is intriguing.
I have other hydrate book by Dr. Sloan. The vapour-soild equilibrium ratio method listed in the book (based on Katz's work) is not as expansive as what is called as Mann's method.
The reference for Mann's method is listed below: